package com.atguigu.gulimall.product.service.impl;

import com.atguigu.common.constant.ProductConstant;
import com.atguigu.gulimall.product.dao.AttrAttrgroupRelationDao;
import com.atguigu.gulimall.product.dao.AttrGroupDao;
import com.atguigu.gulimall.product.dao.CategoryDao;
import com.atguigu.gulimall.product.entity.AttrAttrgroupRelationEntity;
import com.atguigu.gulimall.product.entity.AttrGroupEntity;
import com.atguigu.gulimall.product.entity.CategoryEntity;
import com.atguigu.gulimall.product.service.CategoryService;
import com.atguigu.gulimall.product.vo.AttrGroupRelationVo;
import com.atguigu.gulimall.product.vo.AttrRespVo;
import com.atguigu.gulimall.product.vo.AttrVo;
import com.baomidou.mybatisplus.core.conditions.update.UpdateWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.Arrays;
import java.util.Collection;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.atguigu.common.utils.PageUtils;
import com.atguigu.common.utils.Query;

import com.atguigu.gulimall.product.dao.AttrDao;
import com.atguigu.gulimall.product.entity.AttrEntity;
import com.atguigu.gulimall.product.service.AttrService;
import org.springframework.transaction.annotation.Transactional;


@Service("attrService")
public class AttrServiceImpl extends ServiceImpl<AttrDao, AttrEntity> implements AttrService {
    @Autowired  
    private AttrAttrgroupRelationDao attrAttrgroupRelationDao;
    @Autowired
    private AttrGroupDao attrGroupDao;
    @Autowired
    private CategoryDao categoryDao;
    @Autowired
    private CategoryService categoryService;;
    @Override
    public PageUtils queryPage(Map<String, Object> params) {
        IPage<AttrEntity> page = this.page(
                new Query<AttrEntity>().getPage(params),
                new QueryWrapper<AttrEntity>()
        );

        return new PageUtils(page);
    }

    @Override
    @Transactional
    public void saveAttr(AttrVo attr) {
        AttrEntity attrEntity = new AttrEntity();
        BeanUtils.copyProperties(attr,attrEntity);
        //保存基本数据
        this.save(attrEntity);
        //保存关联关系
        if(attr.getAttrType()== ProductConstant.AttrEnum.ATTR_TYPE_BASE.getCode()&&attr.getAttrGroupId()!=null){
            AttrAttrgroupRelationEntity attrAttrgroupRelationEntity = new AttrAttrgroupRelationEntity();
            attrAttrgroupRelationEntity.setAttrGroupId(attr.getAttrGroupId());
            attrAttrgroupRelationEntity.setAttrId(attrEntity.getAttrId());
            attrAttrgroupRelationDao.insert(attrAttrgroupRelationEntity);
        }

    }

    @Override
    public PageUtils queryBaseAttrPage(Map<String, Object> params, Long catelogId, String type) {
        QueryWrapper<AttrEntity> queryWrapper = new QueryWrapper<AttrEntity>().eq("attr_type","base".equalsIgnoreCase(type)
                ?ProductConstant.AttrEnum.ATTR_TYPE_BASE.getCode():ProductConstant.AttrEnum.ATTR_TYPE_SALE.getCode());
        if(catelogId!=0){
            queryWrapper.eq("catelog_id",catelogId);
        }
        String key = (String)params.get("key");
        if(!StringUtils.isEmpty(key)){
            queryWrapper.and((wrapper)->{
                wrapper.eq("attr_id",key).or().like("attr_name",key);
            });
        }
        IPage<AttrEntity> page = this.page(new Query<AttrEntity>().getPage(params), queryWrapper);
        PageUtils pageUtils = new PageUtils(page);
        List<AttrEntity> records = page.getRecords();
        List<AttrRespVo> respVoList = records.stream().map((attrEntity) -> {
            AttrRespVo attrRespVo = new AttrRespVo();
            BeanUtils.copyProperties(attrEntity, attrRespVo);
            //设置分类和分组的名称
            if("base".equalsIgnoreCase(type)){
                AttrAttrgroupRelationEntity attr_id = attrAttrgroupRelationDao.selectOne(new QueryWrapper<AttrAttrgroupRelationEntity>().eq("attr_id", attrEntity.getAttrId()));
                if (attr_id != null&&attr_id.getAttrGroupId()!=null) {
                    Long attrGroupId = attr_id.getAttrGroupId();
                    AttrGroupEntity attrGroupEntity = attrGroupDao.selectById(attrGroupId);
                    if(attrGroupEntity!=null){
                        attrRespVo.setGroupName(attrGroupEntity.getAttrGroupName());

                    }
                }
            }

            CategoryEntity categoryEntity = categoryDao.selectById(attrEntity.getCatelogId());
            if (categoryEntity != null) {
                attrRespVo.setCatelogName(categoryEntity.getName());
            }
            return attrRespVo;

        }).collect(Collectors.toList());
        pageUtils.setList(respVoList);
        return pageUtils;
    }

    @Override
    public AttrRespVo getAttrInfo(Long attrId) {
        AttrEntity attrEntity = this.getById(attrId);
        AttrRespVo attrRespVo = new AttrRespVo();
        BeanUtils.copyProperties(attrEntity,attrRespVo);
        if(attrEntity.getAttrType()==ProductConstant.AttrEnum.ATTR_TYPE_BASE.getCode()){
            //设置分组信息
            AttrAttrgroupRelationEntity attrGroupRelation = attrAttrgroupRelationDao.selectOne(new QueryWrapper<AttrAttrgroupRelationEntity>().eq("attr_id", attrId));
            if(attrGroupRelation!=null){
                Long attrGroupId = attrGroupRelation.getAttrGroupId();
                attrRespVo.setAttrGroupId(attrGroupId);
                AttrGroupEntity attrGroupEntity = attrGroupDao.selectById(attrGroupId);
                if(attrGroupEntity!=null){
                    attrRespVo.setGroupName(attrGroupEntity.getAttrGroupName());

                }
            }
        }

        //设置分类信息
        Long catelogId = attrEntity.getCatelogId();
        Long[] catelogPath = categoryService.findCatelogPath(catelogId);
        attrRespVo.setCatelogPath(catelogPath);
        CategoryEntity categoryEntity = categoryDao.selectById(catelogId);
        if(categoryEntity!=null){
            attrRespVo.setCatelogName(categoryEntity.getName());

        }
        return attrRespVo;
    }

    @Override
    @Transactional
    public void updateAttr(AttrVo attr) {
        AttrEntity attrEntity = new AttrEntity();
        BeanUtils.copyProperties(attr,attrEntity);
        this.updateById(attrEntity);
        //修改或新增分组关联
        if(attrEntity.getAttrType()==ProductConstant.AttrEnum.ATTR_TYPE_BASE.getCode()){
            AttrAttrgroupRelationEntity attrAttrgroupRelationEntity = new AttrAttrgroupRelationEntity();
            attrAttrgroupRelationEntity.setAttrGroupId(attr.getAttrGroupId());
            attrAttrgroupRelationEntity.setAttrId(attr.getAttrId());
            Integer count = attrAttrgroupRelationDao.selectCount(new QueryWrapper<AttrAttrgroupRelationEntity>().eq("attr_id", attr.getAttrId()));
            if(count>0){

                attrAttrgroupRelationDao.update(attrAttrgroupRelationEntity, new UpdateWrapper<AttrAttrgroupRelationEntity>().eq("attr_id",attr.getAttrId()));
            }else{
                attrAttrgroupRelationDao.insert(attrAttrgroupRelationEntity);
            }
        }

        
    }
    /**
     * 根据分组id查找关联的所有基本属性-规格参数
     * @param attrGroupId
     * @return
     */
    @Override
    public List<AttrEntity> getRelationAttr(Long attrGroupId) {
        QueryWrapper<AttrAttrgroupRelationEntity> queryWrapper = new QueryWrapper<AttrAttrgroupRelationEntity>().eq("attr_group_id", attrGroupId);
        List<AttrAttrgroupRelationEntity> entities = attrAttrgroupRelationDao.selectList(queryWrapper);
        List<Long> attrIds = entities.stream().map(attr -> attr.getAttrId()).collect(Collectors.toList());
        if(attrIds==null||attrIds.size()==0){
            return null;   
        }
        Collection<AttrEntity> attrEntities = this.listByIds(attrIds);
        return (List<AttrEntity>)attrEntities;
    }

    @Override
    public void deleteRelation(AttrGroupRelationVo[] vos) {
        List<AttrAttrgroupRelationEntity> entities = Arrays.asList(vos).stream().map((item) -> {
            AttrAttrgroupRelationEntity attrAttrgroupRelationEntity = new AttrAttrgroupRelationEntity();
            BeanUtils.copyProperties(item, attrAttrgroupRelationEntity);
            return attrAttrgroupRelationEntity;
        }).collect(Collectors.toList());
        attrAttrgroupRelationDao.deleteBetchRelation(entities);
    }

    /**
     * 获取当前分组没有关联的所有属性
     * @param params
     * @param attrGroupId
     * @return
     */
    //@Override
    public PageUtils getNoRelationAttr2(Map<String, Object> params, Long attrGroupId) {
        //当前分组只能关联自己所属的分类的所有属性
        AttrGroupEntity attrGroupEntity = attrGroupDao.selectById(attrGroupId);
        Long catelogId = attrGroupEntity.getCatelogId();
        //当前分组只能关联别的分组没有引用的属性
        //当前分类下的其他分组
        List<AttrGroupEntity> group = attrGroupDao
                .selectList(new QueryWrapper<AttrGroupEntity>()
                        .eq("catelog_id", catelogId)
                        .ne("attr_group_id",attrGroupId));
        List<Long> collect = group.stream().map(item -> item.getAttrGroupId()).collect(Collectors.toList());

        //这些分组关联的属性
        List<AttrAttrgroupRelationEntity> groupId = attrAttrgroupRelationDao
                .selectList(new QueryWrapper<AttrAttrgroupRelationEntity>()
                        .in("attr_group_id", collect));
        List<Long> attrIds = groupId.stream().map(item -> item.getAttrId()).collect(Collectors.toList());
        //从当前的分类的所有属性中移除这些属性

        QueryWrapper<AttrEntity> queryWrapper = new QueryWrapper<AttrEntity>()
                .eq("catelog_id", catelogId)
                .eq("attr_type",ProductConstant.AttrEnum.ATTR_TYPE_BASE.getCode());
        if(attrIds!=null&&attrIds.size()>0){
            queryWrapper.notIn("attr_id", attrIds);
        }
        String key = (String) params.get("key");
        if(!StringUtils.isEmpty(key)){
            queryWrapper.and((w)->{
                  w.eq("attr_id",key).or().like("attr_name",key);
            });
        }
        IPage<AttrEntity> page = this.page(new Query<AttrEntity>().getPage(params), queryWrapper);
        PageUtils pageUtils = new PageUtils(page);
        return pageUtils;
    }
    @Override
    public PageUtils getNoRelationAttr(Map<String, Object> params, Long attrgroupId) {
        //1、当前分组只能关联自己所属的分类里面的所有属性
        AttrGroupEntity attrGroupEntity = attrGroupDao.selectById(attrgroupId);
        Long catelogId = attrGroupEntity.getCatelogId();
        //2、当前分组只能关联别的分组没有引用的属性
        //2.1)、当前分类下的其他分组
        List<AttrGroupEntity> group = attrGroupDao.selectList(new QueryWrapper<AttrGroupEntity>().eq("catelog_id", catelogId));
        List<Long> collect = group.stream().map(item -> {
            return item.getAttrGroupId();
        }).collect(Collectors.toList());

        //2.2)、这些分组关联的属性
        List<AttrAttrgroupRelationEntity> groupId = attrAttrgroupRelationDao.selectList(new QueryWrapper<AttrAttrgroupRelationEntity>().in("attr_group_id", collect));
        List<Long> attrIds = groupId.stream().map(item -> {
            return item.getAttrId();
        }).collect(Collectors.toList());

        //2.3)、从当前分类的所有属性中移除这些属性；
        QueryWrapper<AttrEntity> wrapper = new QueryWrapper<AttrEntity>().eq("catelog_id", catelogId).eq("attr_type",ProductConstant.AttrEnum.ATTR_TYPE_BASE.getCode());
        if(attrIds!=null && attrIds.size()>0){
            wrapper.notIn("attr_id", attrIds);
        }
        String key = (String) params.get("key");
        if(!StringUtils.isEmpty(key)){
            wrapper.and((w)->{
                w.eq("attr_id",key).or().like("attr_name",key);
            });
        }
        IPage<AttrEntity> page = this.page(new Query<AttrEntity>().getPage(params), wrapper);

        PageUtils pageUtils = new PageUtils(page);

        return pageUtils;
    }

    /**
     * 在指定的属性中跳出可以检索的id
     * @param attrIds
     * @return
     */
    @Override
    public List<Long> selectSearchAttr(List attrIds) {
       return this.baseMapper.selectSearchIds(attrIds);

    }

}